Q: What is the sum of all factors of the number 4,000 including 4,000?
A: 9,828
The factors of the number 4,000 are: 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000.
If you add them up, you will get the total of 9,828.